Quarterly report pursuant to Section 13 or 15(d)

ESCROW DEPOSITS - Narrative (Details)

v3.7.0.1
ESCROW DEPOSITS - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Property, Plant and Equipment [Line Items]        
Deposits in like-kind exchange escrow accounts       $ 3,800
Purchases of property and equipment   $ 12,524 $ 5,106  
Escrow deposit, returned to the company $ 1,000      
S92 Heavy Helicopters        
Property, Plant and Equipment [Line Items]        
Purchases of property and equipment $ 2,800